Ionia Weather Forecast
- 60
- 78
Rain Showers Likely
- 46
- 66
Mostly Cloudy
- 45
- 57
Mostly Cloudy
- 36
- 62
Rain Showers Likely
- 33
- 45
Partly Sunny
- 40
- 55
Partly Sunny
Today 13 Oct Ontario
Partly sunny with a chance of Showers Early, then mostly cloudy with Showers likely late this morning. Partly sunny with a chance of Showers early this Afternoon, then partly sunny with a chance of Showers and Thunderstorms late. Warm with Highs Ranging from the mid 70s on the Hilltops to the upper 70s across the lower Elevations. Southwest Winds 5 to 10 Mph, increasing to 10 to 15 Mph. Chance of rain 70 percent.
Tonight 13 Oct Ontario
Mostly cloudy and warm with Lows around 60. West Winds 5 to 10 Mph.
Ionia Temperature Statistics
October Temperature
Rochester, Greater Rochester International Airport (15.5 miles)
Lowest 6 October, 2026
36.6 °FAverage October
55.9 °FHighest 1 October, 2026
78.7 °F
Climate (2021–2026)
Rochester, Greater Rochester International Airport (15.5 miles)
Average Low 2021–2026
42.2 °FAverage 2021–2026
50.7 °FAverage High 2021–2026
59.5 °F